摘要
研究了稀土元素对牙轮钻头渗碳过程的影响。试验结果表明,加入稀土元素,使渗碳速度提高20%～30%,经渗碳 渗硼复合强化后,钻头轴承的寿命提高24.8%～27.8%,其穿孔米道提高率达25%～28%。
Effects of rare earth elements (RE) on the carburizing process of blast hole rock bits are studied. The results show that the carburizing rate has increased by 20%～30% with the addition of RE.It is also found that the service life of the bit bearing subjected to carburizing-boriding combined strengthening has increased by 24.8%～27.8 %, and the drilling length of the bits treated by RE has increased by 25%～28%.
出处
《武汉科技大学学报》
CAS
2003年第4期343-345,共3页
Journal of Wuhan University of Science and Technology
关键词
稀土元素
渗碳
牙轮钻头
轴承寿命
rare earth element
carburizing
blast hole rock bit
service life of bearing
